There’s a huge market for 433 MHz alarm system hardware out there, from PIR motion detectors to door and window sensors. If you want to put them to work, all you need is a receiver, a network ...

Many of these are based around some sort of Arduino-powered CPU ... they don’t think it looks right they sound their own alarm. Some systems vote so that two of three CPUs must agree (at ...

If your security system works with third-party accessories, you can link your Arduino alarm to that system and ... and packing tape as "hinges," you can design a robot that will fold your shirts ...